Evolution, source and tectonic significance of Early Mesozoic granitoid magmatism in the Central Asian Orogenic Belt (central segment)

Li, Shan; Wang, Tao; Wilde, Simon A.; Tong, Ying

doi:10.1016/j.earscirev.2013.06.001

Cited by 160 publications

(100 citation statements)

References 112 publications

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“…Wang et al, 2014a), and has been formed by multiple accretion and arc-continent collision events from the Early Neoproterozoic to the Permian (Windley et al, 2007;Wilhem et al, 2012;Li et al, 2013;F. Wang et al, 2014a).…”

Section: Introductionmentioning

confidence: 95%

“…The Central Asian Orogenic Belt (CAOB) is one of the largest Phanerozoic accretionary orogenic belts on Earth (Şengör et al, 1993;Jahn, 2004;Safonova, 2009;Xiao and Santosh, 2014), consists of microcontinental blocks, island arcs, oceanic crustal remnants, and continental marginal facies rocks (Coleman, 1989;Hu et al, 2000;Pirajno, 2010;Li et al, 2013;F. Wang et al, 2014a), and has been formed by multiple accretion and arc-continent collision events from the Early Neoproterozoic to the Permian (Windley et al, 2007;Wilhem et al, 2012;Li et al, 2013;F.…”

Section: Introductionmentioning

confidence: 99%

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SIMS zircon U–Pb and molybdenite Re–Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu–Mo deposit and granitoids in NE China and their geological significance

Wang

Chun-bo²,

Zhang

et al. 2015

Gondwana Research

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

SIMS zircon U–Pb and molybdenite Re–Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu–Mo deposit and granitoids in NE China and their geological significance

Wang

Chun-bo²,

Zhang

et al. 2015

Gondwana Research

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“…Furthermore, high LILE/HFSE, Y/Nb (2.13-2.70) and Yb/Ta (1.37-1.96) ratios, and with strong fractionation of Ba, Sr and Eu are also consistent with derivation from a basaltic source (Figs. 5 and 7; Table 1; Eby, 1990;Li et al, 2013). The two specimens of the Kafiristan pluton are, therefore, interpreted to have resulted from the variable fractionation of magma from basaltic source in an anorogenic, perhaps rift-type, environment.…”

Section: Kafiristan Plutonmentioning

confidence: 93%

Rifting, subduction and collisional records from pluton petrogenesis and geochronology in the Hindu Kush, NW Pakistan

et al. 2016

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New U-(Th)/Pb geochronology and geochemical analyses of plutonic bodies in the Hindu Kush range, NW Pakistan, provide insight on the crustal growth and tectonic evolution of the southern Eurasian margin. These new data outline a protracted magmatic history that spans the Cambrian to the Neogene (ca. 538 to 23 Ma) and record a variety of petrogenetic associations variably influenced by within plate, volcanic arc, and collision tectonic environments. The Kafiristan pluton (538 ± 4 to 487 ± 3 Ma) yields geochemical signatures consistent with extensional plutonism and rifting of the Hindu Kush terrane from Gondwana. The Tirich Mir (127 ± 1 to 123 ± 1 Ma) and Buni-Zom (110 ± 1 to 104 ± 1 Ma) plutons have geochemical signatures that can be attributed to a subduction related continental volcanic arc system that developed along the southern margin of Eurasia in the Mesozoic. The Garam Chasma pluton, the youngest body in the study area (27.3 ± 0.5 to 22.8 ± 0.4 Ma), yields a geochemical signature consistent with widespread anatexis during crustal thickening related to the development of the Himalaya. The present geochemical and geochronological analysis from the Hindu Kush have produced important new constraints on the timing of tectonic events and variable tectonic settings along the south Eurasian margin before and after the continued India-Asia collision.

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“…Although numerous studies have been undertaken on the Late Paleozoic subduction-accretion complexes, arcrelated igneous rocks and sedimentary rocks in the area (Xiao et al, 2003;Shen et al, 2006;Jian et al, 2008Jian et al, , 2010Johnson et al, 2008;Han et al, 2012;Xu et al, 2013), the Triassic sedimentary provenance, tectonic setting, and post-accretionary tectonic evolution of theorogenic belt still remains to be determined Liu et al, 2009;Li et al, 2013). The Triassic Xingfuzhilu Formation is the youngest clastic sedimentary sequence in the area related to the evolution of the CAOB ( Fig.…”

Section: Acknowledgementmentioning

confidence: 99%

Microcontinent and Arc Collision in the Beishan Orogen: Constraint from Detrital Zircon U‐Pb and ⁴⁰Ar/³⁹Ar Geochronology: Implications for Continental Growth of the Southern Altaids

Xiao

Han

et al. 2013

Acta Geologica Sinica (Eng)

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The mechanism of continental growth of the Altaids is currently under debate between models invoking continuous subduction-accretion or punctuated accretion by closure of multiple ocean basins. We use the Yueyashan-Xichangjing ophiolite belt of the Beishan Collage (southern Altaids) to constrain the earliest oceanic crust in the southern Paleoasian Ocean. Five lithotectonic units were identified from south to north: the Huaniushan block, a sedimentary passive margin, the structurally incoherent Yueyashan-Xichangjing ophiolite complex, a coherent sedimentary package, and the Mazongshan island arc with granitic rocks. We present a structural analysis of the accretionary complex, which is composed of the incoherent ophiolitic melange and coherent sedimentary rocks, to work out the tectonic polarity. A new weighted mean 206 Pb/ 238 U age of 534.4 ± 3.4 Ma from a plagiogranite in the Yueyashan-Xichangjing ophiolite indicates that the ocean floor formed in the early Cambrian. Furthermore, we present new geochemical data to constrain the tectonic setting of the YueyashanXichangjing ophiolite, and obtained seven U-Pb ages of Sandstone and granitoid and five Ar/Ar ages. The Yueyashan-Xichangjing ophiolite was emplaced as a result of northward subduction of an oceanic plate beneath the Mazongshan island arc to the north at about 420 Ma. Together with data from the literature, our work demonstrates that there were multiple overlapping periods of accretion existed in the Palaeozoic in the northern and southern Altaids. Therefore, a model of multiple accretion by closure of several ocean basins is most viable. Key words:Beishan, Yueyashan-Xichangjing, ophiolite, Accretionary complex, Altaids. The Central Asian Orogenic Belt (CAOB) is characterized by amalgamation of various island arcs, ophiolites, accretionary prisms, oceanic plateaus and possibly some micro-continents, during the progressive subduction-accretion processes. Isotopic data suggest significant Phanerozoic crustal growth in the CAOB, whereas recycling of ancient crust is also addressed by some recent researchers. The Russian Altai is one of the key components of the CAOB, consisting of part of the Altai-Mongolian terrane (AM) in Russia, the Gorny Altai terrane (GA) and the Charysh-Terekta-Ulagan-Sayan suture (CTUSs) zone. Voluminous granitoids and their volcanic equivalents, as well as a series of Paleozoic sedimentary and meta-sedimentary rocks occur, but they have not been well investigated. Age and source nature of these rocks can provide critical constraints on the crustal growth, sedimentary basin evolution, and tectono-thermal events in Russian Altai area.In this study, two volcanic rocks and a biotite-gneiss along the CTUSs zone were collected for zircon U-Pb and Hf-isotope analysis. Zircons from the two volcanic rocks yield consistent crystallization ages of 420.9±1.4 Ma and 421.4±2.5 Ma, respectively, indicating a magmatic activity in the latest Silurian. These zircons are characterized by low initial 176 Hf/ 177 Hf isotopic ratios, with ε Hf (...

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Evolution, source and tectonic significance of Early Mesozoic granitoid magmatism in the Central Asian Orogenic Belt (central segment)

Cited by 160 publications

References 112 publications

SIMS zircon U–Pb and molybdenite Re–Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu–Mo deposit and granitoids in NE China and their geological significance

SIMS zircon U–Pb and molybdenite Re–Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu–Mo deposit and granitoids in NE China and their geological significance

Rifting, subduction and collisional records from pluton petrogenesis and geochronology in the Hindu Kush, NW Pakistan

Microcontinent and Arc Collision in the Beishan Orogen: Constraint from Detrital Zircon U‐Pb and ⁴⁰Ar/³⁹Ar Geochronology: Implications for Continental Growth of the Southern Altaids

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Evolution, source and tectonic significance of Early Mesozoic granitoid magmatism in the Central Asian Orogenic Belt (central segment)

Cited by 160 publications

References 112 publications

SIMS zircon U–Pb and molybdenite Re–Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu–Mo deposit and granitoids in NE China and their geological significance

SIMS zircon U–Pb and molybdenite Re–Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu–Mo deposit and granitoids in NE China and their geological significance

Rifting, subduction and collisional records from pluton petrogenesis and geochronology in the Hindu Kush, NW Pakistan

Microcontinent and Arc Collision in the Beishan Orogen: Constraint from Detrital Zircon U‐Pb and 40Ar/39Ar Geochronology: Implications for Continental Growth of the Southern Altaids

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Microcontinent and Arc Collision in the Beishan Orogen: Constraint from Detrital Zircon U‐Pb and ⁴⁰Ar/³⁹Ar Geochronology: Implications for Continental Growth of the Southern Altaids